To manage a system effectively, you might focus on the interactions of the parts rather than their behavior taken separately.

To manage a system effectively, you might focus on the interactions of the parts rather than their behavior taken separately.

Managers who don't know how to measure what they want settle for wanting what they can measure.

So much time is currently spent in worrying about the future that the present is allowed to go to hell.

Common sense … has the very curious property of being more correct retrospectively than prospectively. It seems to me that one of the principal criteria to be applied to successful science is that its results are almost always obvious retrospectively; unfortunately, they seldom are prospectively. Common sense provides a kind of ultimate validation after science has completed its work; it seldom anticipates what science is going to discover.

Nothing is harder to topple than a fact that supports a deeply held prejudice denied by its holder.

Every problem interacts with other problems and is therefore part of a set of interrelated problems, a system of problems. I choose to call such a system a mess.